When we were there in Jun/Jul 04 we were travelling with both my daughter (who always uses her wheelchair) and my MIL who rented an ECV. There were 11 of us waiting to watch Spectro at MK. They let us all stay together except my nephew in the stroller - no strollers allowed in the handicapped viewing area we were told by the CM. So my SIL found a place right next to the viewing area for her and my nephew. So if you are travelling with a stroller along with your dad you might not be able to stay together in the viewing area.